Tilting phase transition of amphiphile monolayers at the air-water interface: Physically reasoning phase portion in a phase diagram

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	Tilting phase transition of amphiphile monolayers at the air-water interface: Physically reasoning phase portion in a phase diagram
	Iwamoto, M; Ou-Yang, ZC; Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528552, Japan.
刊名	JOURNAL OF CHEMICAL PHYSICS
	2002
卷号	117 期号:16 页码:7705-7711
关键词	Maxwell-displacement Current Langmuir-monolayers X-ray Symmetry Generation
ISSN号	0021-9606
英文摘要	The untilting to tilting (U-->t) phase transition of amphiphile monolayers at the water-air interface is studied as a distortion of the orthogonally hexagonal orientation of molecules by a competition among entropy, Lennard-Jones potential, and the work done by surface and bulk pressures (Pi,P). The U/t phase portion in the Pi-T diagram is derived as an approximately linear van der Waals equation Pi=kT/2A(0)-Pl(0) with A(0), l(0) being the molecular area and chain length, respectively, at the U phase. A comparison with experiment in monolayers of C-14-C-24 acids [see, e.g., Peterson , Langmuir 8, 2995 (1992)] shows quantitative agreement. Besides two optimal tilting directions, i.e., in the direction to a nearest neighbor (NN) and to a next-nearest neighbor (NNN), an intermediate tilt at the NN-->NNN transition is shown to be physically possible based on Selinger-Nelson theory [Phys. Rev. Lett. 61, 416 (1988)]. (C) 2002 American Institute of Physics.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000178483400033
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/13412]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528552, Japan.
推荐引用方式 GB/T 7714	Iwamoto, M,Ou-Yang, ZC,Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528552, Japan.. Tilting phase transition of amphiphile monolayers at the air-water interface: Physically reasoning phase portion in a phase diagram[J]. JOURNAL OF CHEMICAL PHYSICS,2002,117(16):7705-7711.
APA	Iwamoto, M,Ou-Yang, ZC,&Iwamoto, M , Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528552, Japan..(2002).Tilting phase transition of amphiphile monolayers at the air-water interface: Physically reasoning phase portion in a phase diagram.JOURNAL OF CHEMICAL PHYSICS,117(16),7705-7711.
MLA	Iwamoto, M,et al."Tilting phase transition of amphiphile monolayers at the air-water interface: Physically reasoning phase portion in a phase diagram".JOURNAL OF CHEMICAL PHYSICS 117.16(2002):7705-7711.